Summary of Contents for Uniden SMH 4000
- Page 1 4000 uniden® 150 to 174 MHz uniden� UNI DEN AMERICA CORPORATION Cellular Communications Division SERVICE Amon Carter Blvd. 4700 Fort Worth, TX 76155 (817) 858-3300 MANUAL CCSM 38 Revision 1...
- Page 2 DO NOT let children operate any t ransmitter-equipped radio equipment. Have your radio equipment i nstalled and serviced by a qualified tech nician . © 1 992, Uniden A merica Corporation A l l Rights Reserved Printed in the United States of America...
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Page 3: Table Of Contents
Power Amplifier PCB (PD-309AA) Chip Location (Earlier Version) ..... 46 ..Semiconductor Pinouts ............... 51 Complete Parts List 1 992 SMH 4000 Page 1 December... -
Page 4: Specifications
Specifications The SMH 4000 meets or exceeds the following specifications: General Available Channels: ... . . 36 Frequency Range: 1 50 MHz to 1 74 MHz . 1 3. 6 VOC (negative groun d on ly) Power Source: . -
Page 5: Introduction
Replacement parts are available through This service manual is intended for use by experienced technicians familiar with the Uniden Parts and Service Division lo similar types of equipment. The manual cated in Indianapolis, Indiana. When or contains all service information required for... -
Page 6: Installation
All Uniden transceivers are factory tested and are in working order when lation. Also make sure that all the parts operate properly and that you have shipped;... - Page 7 • Avoid locations that may expose the parts to moisture. Installing the Transceiver The SMH 4000 transceiver is small Installing the Antenna enough to fit almost anywhere. You can in stall it under the dash, seat, or in any other Each vehicle model and body style reacts convenient location.
- Page 8 Make sure that the power cable is SMH 4000 Decembe r 1 992 Page 6...
- Page 9 Make sure that you have the speaker's positive wire connected to p of the speaker jumper plug jumper and the speaker's SMH 4000 Decem ber 1 992 Page...
- Page 10 Controls and Indicators Channel BUSY Channel Channel Up Down SCAN Display Switch Switch Switch Switch TX LED, · switch CALL LED Microphone PUSH Jack ON/OFF Control Switch Control On/Off Volume Control Press this control to switch the radio's power on or off . R otate this (PUSH ON/OFF and VOL) control clockwise to i ncrease the volume or counterclockwise to decrease the volume.
- Page 11 (WA101) Connector Anten na Jack Connects the radio with the antenna. Option Socket Connects the radio with an optional external speaker. Power Connector For 1 3. 8 VDC supply (positive polarity only). Decem ber 1 992 SMH 4000 Page 9...
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Page 12: Operating Instructions
Speak clearly and in a normal conversational voice. 9. When you finish speaking, immediately release the PTT switch and listen for a reply. SMH 4000 Page 1 0 December 1 992... -
Page 13: Description
Selectable Dropout Delay Time • Time-Out Timer • 36-programmable receive channels • 36-programmable transmit channels. For the operator to use these features, you must program the SMH 400D radio with the AMX 500C PROM Programmer. Decem ber 1992 Page 11 SMH 4000... -
Page 14: Theory Of Operation
45.1 above the receive channel frequency. In the transmit mode the VCO low pass filter attenuates the frequencies (IC401) oscillates on the transmitting fre- between 3 and 20 by a factor of SMH 4000 December 1 992 Page 1 2... - Page 15 VR102, to the ac put power under varying load conditions. tive highpass filter, IC103 2/2. The active highpass filter, IC103 212, allows the high frequency "rush" noise to pass. This noise Decem ber 1 992 SMH 4000 Page 1 3...
- Page 16 AMX 0618 when a correct CTCSS tone or Two 500C, PROM Writer. Tone is decoded by the microprocessor. The anode of D702 is connected to the emitter of 0701, dimmer circuit. Page 1 4 SMH 4000 Decem ber 1 992...
- Page 17 high, IC601, pin 57), followed by the "N" The operating speed of the microproces sor is determined by the crystal (X601) and "A" counter data (20 bits of data fol lowed by pulsing the enable line high.) connected between pins 29 and 30 of IC601.
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Page 18: Factory Eeprom Test Settings
Factory EEPROM Test Setti ngs When the SMH 4000 is shipped from the factory, its EEPROM is programmed with the following EEPROM test settings: Digital Squelch Frequency (M Hz) Tone Mode Channel 161.000 160.050 none none none 150.055 none none 150. -
Page 19: Exploded Mechanical View Parts List
Exploded Mechanical View Parts List Symbol Part Descri ption Part No. Chassis FCSY182386Z Front Panel GCMF182387Z GCMZ482388Z Display Plate GETC481501Z Handle GMSC480407Z Mounting Screw GNBP382389Z Black Push Button GNBP482390Z Gray Push Button GNBY482391Z Knob HCMB382393Z Bottom Case HCMT382394Z Top Case HHDE481579Z IC Holder HHDE482508Z... - Page 20 Page 20 S M H 4000 December 1 99 2...
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Page 21: Assembly/Disassembly
Align the tabs on the bottom cover with the slots on the radio and firmly press the bottom cover onto the radio. Hold the bottom cover in place while you install and tighten the bottom cover retaining screws. December 1 992 SMH 4000 Page 23... -
Page 22: Alignment Procedures
Alignment P rocedures Transmitter Alignment Adjust Remarks Step Channel a. Connect frequency counter, deviation meter, R F power meter, and RF dummy load to antenna jack. b. Connect 1 3.6 VDC power supply to radio's power cord. Frequency •13.6 voe Co1.M1ter Power COf'Vl8ctor Antenna... - Page 23 CT301 VR301 L111 J201 VR201 of IC101 L402 L109 VR101 VR102 Main Power and Amplifier PCB Alignment Points December 1 992 SMH 4000 Page 25...
- Page 25 Receiver Alignment Remarks Step Channel Adjust a. Conn ect R F signal generator to antenna jack. b. Conn ect 1 3.6 VDC power supply to radio's power cord. DC Voltmeter Frequency Counter AC Voltmeter Pin 1 1 IC1 01 +13.s voe Deviation Meter Meter...
- Page 26 Page December SMH 4000 1 992...
- Page 28 Semiconductor P i nouts Diodes Connection ·::: · .., .., C1 cathode ..E1 cathode D 1 cathode Digit common anode Digit 2 common anode D2 cathode E2 cathode C2 cathode G2 cathode...
- Page 29 Integrated Circuits I ::> 2$01 048 2S C2539 2SA1 1 62 2SB891 2SA1 204 <D � -� 2SC2673 2SK302 B E C G N D G N D 2SC2026 E C B 2SA950 2S C2694 DTC1 44E K B E C 2SC2407 2SC271 2 2SC271 4...
- Page 30 Integrated Circuits (continued) OSCin OSCout RE Fout 2 3 4 5 6 7 8 9 Modulus Control Data Clock M B87006A NOT USED G N D2 N . I NV2 I N V2 F I LTER OUT I NV 1 L Sh I- z I...
- Page 31 Transistors '.:) > • .: • .: · .: · .: ..UC-1 1 05 7805A 6000 J RC � UC1 1 67 > UC1 1 05 I � P2-0 � AVss P2-1 Vhftfb P2-2 P 2 - 3 NJ M7805A P2-4 P6-3 P2-5...
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Page 32: Complete Parts List
PD-308AC C 1 32 BCXS5 1 1 045Z CC 0 . 1 µF 25V K B PD-308AC C 1 33 BCXS5 1 1 045Z CC 0 . 1 µF 25V K B PD-308AC December 1 992 SMH 4000 Page 51... - Page 33 Board N umber(s) Part N umber Description Symbol PD-308AC BCVQ3 1 1 036Z CC 0.01 µ F 1 6V M Y C-1 40 C1 35 0.33 µF 35V M C-089 PD-308AC C1 36 BCS8663386Z PD-308AC EL 1 0 µF 1 6V M C-095 C1 37 BCE R31 1 006Z CD 390PF 50V K Y B...
- Page 34 ;; y moo1 Part N u mber Desc ription Board Number(s) C26 1 BCV P81 1 025Z CC 0.001 µF 50V K B C-1 40 PD-308AC C262 BCVP8 1 1 025Z CC 0 .001 µ F 50V K B C- 1 40 PD-308AC C263 BCVQ31 1 036Z...
- Page 35 CC 0 . 1 µF 25V K B PD-304AC C61 7 BCXS5 1 1 0452 PD-304AC C61 8 BCVPB 1 1 0252 CC 0 . 00 1 �t F 50V K B C - 1 40 Page 54 SMH 4000 December 1 992...
- Page 36 Symbol Part N umber Description Board Number(s) B C E R81 1 086Z EL 0 . 1 µF 50V M C-095 C620 P D-304AC C625 BCXS5 1 1 045Z CC 0 . 1 µF 25V K B PD-304AC EL 22µF 1 6V M C-095 C626 BCER31 2206Z PD-304AC...
- Page 37 Description Board N umber(s) Symbol Part N umber 0602 BOA Y0393001 H S K 1 20TR P0-304AC 0603 BOA Y0393001 HSK1 20TR P 0-304AC 0605 BOA Y0393001 HSK1 20TR P0-304AC 1 $$88 0608 BOA Y0208001 P 0-304AC 0701 BOA Y01 54001 LOG-202A LED P0-305AB 0702...
- Page 38 T05-C2 1 5 0A2 WA 1 01 CZOZ071 403Z Accessory jack CZOZ07 1 37BZ WA 1 05 Accessory p l ug Y701 BYYY040 1 001 YY-401 P722 - 5 R P 0 -305AB YW502 BYYY0047001 YY-047 Page December SMH 4000 1 992...
- Page 39 P ri nted C i rc u it Boards Description Symbol Part N umber Board N umber(s) P C 1 01 BPDY0308ACZ Main PCB PD-308AC PC301 B PDY0309ABZ Power Amplifier PCB PD-309AB PC601 B PDY0304ACZ P D-304AC PC701 BPDY0305ABZ Control PCB P D-305AB PC75 1 BPDY0306AAZ...
- Page 40 Symbol Part Number Description Board N umber(s) R 1 5 1 B RZV002 1 00 1 RZ-021 J C2A PD-308AC R 1 52 BRZV002 1 001 RC RZ-02 1 JC2A PD-308AC R 1 55 B R FD 1 85604Z RC 56 n 1 /8W J PD-308AC R 1 56 BRFD1 82234Z...
- Page 41 Description Board Number(s) Symbol Part N u mber RC 22 Q 1 /BW J R303 B R FC 1 82204Z P D-309AB P D-309AB R305 B R FC 1 85604Z RC 56 n 1 /BW J R306 B R FC 1 85604Z RC 56 Q 1 /BW J P D-309AB R307...
- Page 42 -··· · -- Part Number Desc ription Board N umber(s) Symbol R447 BRFD 1 81 034Z RC 1 0K Q 1 /BW J PD-308AC PD-308AC R450 BRFD 1 81 034Z RC 1 0K Q 1 /8W J RC 1 OOK Q 1 /8W J PD-308AC R45 1 BRFD 1 81 044Z...
- Page 43 Description Board N umber(s) Symbol Part N umber B R FD 1 8 1 244Z RC 1 20K P D-304AC R665 1 /BW J P D-304AC R666 B R FD 1 8 1 034Z RC 1 0K 1 /BW J RC 1 M 1 /BW J P D-304AC...
- Page 44 Trans istors Symbol Part Number Description Board N umber(s) 01 01 BD8C20261 1 1 DB-323 2SC2026-L P D-308AC 01 02 BDC803021 24 DC-025 2SK302-Y P D-308AC 0 1 03 8D8C3337000 08-387 2SC3337 P D-308AC 0 1 06 BD8C27 1 2 1 24 08-381 2SC271 2-Y P D-308AC 01 07...
- Page 45 RT-531 TMC4K 1 0KB n P D-304AC VR602 B RTY0531 474 RT-531 470KB n PD-304AC V R75 1 B RVY0674001 P D-306AA RV-674 1 0KA n BRVY0673001 RV -673 1 OKB n P D-306AA VR752 SMH 4000 December 1 992 Page...
- Page 46 Warranty Consult your Uniden Commercial Communications Pricing Information for details about the warranty for this unit.
- Page 47 C C SM SMH 4000 38, Rev i s i on 1 December 1 99 2...
- Page 48 _ _ _ - - SWITC HING_ - AUDIO - - - - - - - - - - - I FILTER MUTE GATE - ...1 1 . SA SMH 400 0 Block Diagram SMH 4000 Page 1 7 December 1 992...
- Page 49 ..., SMH 4000 Exploded Mechanical View Page S M H 4000 Decembe r 1 992...
- Page 50 \I F · 2 1 7 PD306 F C I O S • 0 8 3 K · 7 0 · 5 . 5 P C G O I P 0 - 3 0 L I T O P SMH 4000 Wiring Diagram...
- Page 54 <..> ID - u.. • - - �=· - ��, � �: - � � = -;u o; -,;; , os ., ,, SMH 4000 Logic PCB/Switch PCB Schematic Diagram S M H 4000 Page 31 December 1 99 2...
- Page 55 SMH 4000 Front PCB (P0-305AB) Component Side PAT T E.Rt-1 S M H 4000 SMH 400 0 Fro nt PCB {P0-305AB) Switch PCB {P0-306AA) Solder Side Component S ide Page SMH 4000 December 1 992...
- Page 56 TOUCHER 1'1 4 - 8 1 938 SMH 4000 Mai n PCB (PD-308BA) C om po nent Side Solde r Side Com ponent Side December SMH 4000 Page 1 992...
- Page 57 SMH 4000 Mai n PCB (PD-308BA) Component S i de Solder S ide Solder Side Page December SMH 4000 1 992...
- Page 58 ·-. ', .. S M H 4000 (Earl ier Version) Main PCB (P D-308AA) Component S i de Solder Side Com ponent Side December 1 992 S M H 4000 Page...
- Page 59 ·:· �,;; � ...: . �·�· �·...; ' �· � '�- ("') I"· �'+.:' ·.- SMH 4000 (Earl ier Version) Mai n PCB (PD-308AA) Component Side Solder Side Solder S ide December 1 99 2 Page S M H 4000...
- Page 60 ' � """"' ..l'( � ..:.1�·. ·�---"�� � ·. • J P G31 · �·.j · : . � . SMH 4000 Logic PCB (PD-304AD) Component Side December 1 992 S M H 4000 Page 37...
- Page 61 0 60 3 · R 6 8 1 - - . -� .ct: , -� - - _ · -� - RS88 S M H 400 0 Logic PCB {P D-304AD) Solder Side Decem ber 1 992 Page 38 SMH 4000...
- Page 62 ·""::..-=�- SMH 4000 (Earl ier Version) Logi c PCB (PD-304AC) Component S ide SM H 4000 December 1 992 Page 39...
- Page 63 Rf:i 2 8 0 6 0 7 .t:=J · .:·:1 .- . , • • - · - »· ' · • • 'i_':- ' """' ' """ ' �:; · }; _ : ' ·;.,Q j)oL.,c -::�.v.;-t- ./'" · •.
- Page 64 -.! m -tt" - \. .,.. � \I) l' 3 06 ·�· SMH 4000 C o m po n ent Side Power Ampl ifier PCB (PD-309AC) Solder S i de Component Location - Component Side December 1 992 SMH 4000...
- Page 65 ·. - . . · . . C (..) S M H 4000 Power Amplifier PCB (P D-309AC) Component Side Chip Location - Component S ide Solder Side Page S M H 4000 December 1 992...
- Page 66 0306 --.J IJ) .fl" - ,. � � SMH 4000 (Earlier Version) Power Ampl ifier PCB (PD-309AB) Component Side Solder Side Com ponent Location - Compo ne nt Side December 1 992 SMH 4000 Page 43...
- Page 67 S M H 4000 (Earl ier Vers ion) Power Amplifier PCB (P D-309AB) Component S i de Ch ip Location - Com ponent Side Solder Side Page 44 S M H 4000 December 1 992...
- Page 68 S M H 4000 (Earlier Version) Power Amplifier PCB (PD-309AA) Component Side Solder Side Com ponent Location - Component Side December 1 992 S M H 4000 Page 45...
- Page 69 SMH 4000 ( Earlier Vers ion) Power A m p l ifier PCB (P D-309AA) C om ponent Side S o l de r Side Chi p Location - Component S ide Page 46 SM H 4000 December 1 99 2...
- Page 70 SMH 4000 (Earlier Version) Power Ampl ifier PCB (P D-309AA) Component Side Solder Side Chip Location - Com ponent Side December 1 992 Page 46 SM H 4000...
- Page 71 PY2WFG Wilson Agosto (Normalmente eu faço manuais de otima qualidade. Esse aqui ta bem marromenos. Infelizmente a fonte é a xerox de um manual. Mas como nao ha informacao nenhuma desse radio na net ate hoje, preferi fazer um scan marromenos a deixar de documentar o aparelho. Me desculpem!)